Senior Software Engineer - Payments (Singapore, APAC)
Remote - Singapore
Almost every dollar that moves through Shopify payments, payouts, refunds, fees, cross-border sales eventually has to be recorded accurately, reconciled, and trusted. As a Senior Software Engineer on this team, you'll build the financial systems that make money movement correct and reliable at scale, and the cross-border commerce technology that lets merchants sell into new countries without managing duties, taxes, and currency conversion themselves.
You’ll help design and build Shopify Ledger infrastructure that underpins financial correctness across all Shopify products. Ledger records and reconciles money movement such as charges, payouts, refunds, and fee splits. This system provides an auditable source of truth for balances and transaction history, giving Shopify the core primitives needed to operate money products reliably at scale.
You’ll join a small, senior team at the intersection of payments, cross-border commerce, finance, and data. Engineers on this team play a meaningful role in shaping what gets built, not just how it gets built, identifying high-impact problems for merchants and partnering across Shopify to solve them. You'll join a bench of Staff and Senior-level engineers and step into peer-level technical conversations from day one.
Because the team is based in APAC and collaborates closely with partners and teams in North America, comfort with async communication is essential.
Key Responsibilities
Design, build, and operate highly reliable, scalable distributed systems that handle money movement at Shopify
Build and maintain financial infrastructure that keeps money movement accurate, reconciled, and trustworthy
Work in Ruby on Rails within Shopify's core platform, and in Go for new services
Partner closely with payments, commerce, finance, and data teams across Shopify
Collaborate effectively with external partners and providers across global time zones
Own ambiguous, high-impact problems end to end, from shaping the approach to delivering production-ready systems
Bring a merchant-first mindset to the work and help define not just how systems are built, but what should be built
Participate in an incident response on-call rotation
Use AI tools to accelerate engineering workflows, proof of concept, and raise the quality of day-to-day development
Qualifications
Strong backend engineering experience, with depth in distributed systems, service design, and production operations
A track record of designing, building, and operating highly reliable, scalable systems, that require strong guarantees around consistency, fault tolerance, idempotency, recovery, or data integrity.
Comfort navigating ambiguity, shaping loosely defined problems, and driving work forward with a high degree of ownership.
Excellent written communication skills and comfort collaborating asynchronously across time zones.
Strong system design and problem-solving skills, with the judgment to make thoughtful trade-offs between correctness, complexity, performance, and delivery speed
Proficiency in a backend language such as Ruby and/or Go (Shopify hires for strong engineering fundamentals, not a specific stack)
A collaborative approach to working across multiple internal teams and external partners
Willingness to occasionally join meetings or calls outside standard hours to overlap with global teams
Nice to have
Experience with payments, fintech, or other financial systems
Familiarity with money-movement systems, ledgers, or accounting primitives
Exposure to cross-border or international commerce duties, taxes, FX, or compliance
Hands-on experience with Ruby on Rails and/or Go
Experience operating production systems and participating in on-call
We may use AI-enabled tools to screen, select, and assess applications. All AI outputs are reviewed and validated by our recruitment team.
Engineering. It’s our DNA.
Engineering isn't a department at Shopify. It's our DNA. The engineers who thrive here care about the code, the system, and the merchants relying on both. They want hard problems and uncomfortable growth. They find solutions without waiting for permission. They ship weekly. They want commerce to work better for everyone. So does our founder, Tobi, who still codes and still shapes where this thing is going.
They're open source nerds. They pair program because two brains write better code than one. New tools, new models, new approaches. They experiment constantly. Most of what's standard here started as someone hacking on something.
They use AI like a keyboard, reflexively and everywhere, to clear the mundane and make room for thinking. And they work in the open. The fastest way to learn here is to watch someone better than you do the work. If that sounds like you, come build with us.
Mastery-matched compensation.
~Mastery
At Shopify, getting better at your craft and increasing your impact is how you grow. Twice a year, we assess both in our ~Mastery cycle, Shopify’s performance review. Achieving higher ~Mastery is a promotion, and when you earn a promotion your total rewards grow with it. Crafter and manager are equal paths, so you can pursue excellence in the craft you’re best at.
Total Rewards
With Flex Comp, your Rewards Wallet gives you agency over your compensation mix. Adjust your mix of cash, restricted share units, and stock options (including programs like Long-Term Equity)* to where it makes sense for you, and mix it up anytime as life and priorities change. Buying a house? Want more skin in the game? Just experimenting? It’s your call.
* Flex Comp program offerings vary based on location, role, and employment type. Full details are set out in our Terms & Conditions and related plan documents.
Room for the rest of your life.
Flexible work, remote by design
A flexible vacation policy means most Shopifolk can take the vacation days they feel they need to recharge.
If a change of everyday scenery is more your jam, Destination 90 means you can work from (almost) anywhere in the world for 90 days of the year.
Your setup
Your battlestation is your home base. Request the desk, chair, and AV gear you need to get shit done.
Benefits
You need ‘em, we’ve got ‘em. Our health and welfare benefits may include health, dental, vision, disability, and life insurance depending on your country. If you’re in a country without a package, you'll receive a monthly allowance. We also offer mental health support for you and your dependents, including immediate and confidential services like counseling and coaching sessions.
Family support
We offer fertility benefits globally, along with paid parental leave to welcome a new family member.
Show us your craft.
The Life Story is how we understand the themes of your career journey so far, human to human. What you’ve learned, and how you made a difference. Show us the trophies and the bruises: the problems you’ve solved, the challenges you encountered, the decisions you made, and the lessons you learned along the way.
We’re looking for world-class crafters. Crafters obsessed with pursuing excellence in their field. Our craft assessment looks at your personal journey toward mastery, and your potential to go broader and deeper in novel ways.
You’ll start with an online assessment, followed by a craft assessment. Show us what you do best, and how you do it. Shopify’s bar is high, and code wins arguments around here. Let your skills do the talking.
Building on your craft assessment, these interviews dive deeper into your experience and technical aptitude. Depending on the role, this may include technical deep dives focusing on projects you've previously worked on, collaborating in a design critique, exploring a dataset using SQL, or taking the lead on solving a problem with your interviewer as your co-pilot.